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GB/T 40844-2021 English PDF

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US$179.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40844-2021: Determination of synthetic musks in cosmetics - GC-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40844-2021	179	Add to Cart	3 days	Determination of synthetic musks in cosmetics - GC-MS method	Valid

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Basic data

Standard ID: GB/T 40844-2021 (GB/T40844-2021)
Description (Translated English): Determination of synthetic musks in cosmetics - GC-MS method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Word Count Estimation: 9,978
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40844-2021: Determination of synthetic musks in cosmetics - GC-MS method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of synthetic musks in cosmetics - GC-MS method ICS 71.100.70 CCSY42 National Standards of People's Republic of China Determination of synthetic musk in cosmetics Gas chromatography-mass spectrometry GC-MSmethod Released on 2021-10-11 2022-05-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Standardization Technical Committee on Inspection Methods for Key Products of Quality Supervision (SAC/TC374). Drafting organizations of this document. Shanghai Institute of Quality Supervision and Inspection Technology, CCIC Warner (Beijing) Quality Technology Center Co., Ltd., Yujia Co., Ltd., Warner Pass (Beijing) Certification Co., Ltd., China Inspection Alliance (Beijing) Quality Inspection Technology Research Institute Co., Ltd. The main drafters of this document. Zhou Jing, Hu Shoujiang, Lan Xu, Xu Hongbin, Lin Yan, Leng Taohua, He Xiaojun, Weng Shiyu, Zhou Yaobin, Ge Yu, Meng Jie, Dai Yuefeng, Zou Yaxiong, Zheng Cunzhe, Chen Dongyang. Determination of synthetic musk in cosmetics Gas chromatography-mass spectrometry

1 Scope

This document specifies the principles, reagents and materials, equipment and test procedures for the determination of synthetic musk in cosmetics by gas chromatography-mass spectrometry. Steps, result calculations and precision. This document is applicable to the determination of 11 kinds of artificial musk in liquid, lotion, cream cosmetics, lipstick and powder cosmetics. 11 kinds of synthetic musks are 5 kinds of banned nitro musks, including umbrella musk, sunflower musk, Tibet musk, ketone musk and xylene musk Incense and 6 types of polycyclic musks include Gallo Musk, Toner Musk, Kaixu Melon, Terrass, Saly Musk, and Sandalwood Musk.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 6682 Analytical laboratory water specifications and test methods

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Principle

The sample is ultrasonically extracted with an organic solvent, centrifuged, and purified by matrix-dispersed solid-phase extraction. After concentration, the sample is fixed to volume and passed through a 0.45μm organic filter membrane. Filter, use gas chromatography-mass spectrometer detection, internal standard calibration standard curve method for quantification.

5 Reagents and materials

Unless otherwise specified, only use chromatographically pure reagents. 5.1 Water. GB/T 6682, level one. 5.2 n-hexane. 5.3 Acetonitrile. 5.4 Cyclohexane. 5.5 Ethyl acetate. 5.6 Formic acid. 5.7 Sodium chloride, analytical grade. 5.8 Cyclohexane/ethyl acetate solution. a solution prepared by mixing cyclohexane (5.4) and ethyl acetate (5.5) = 1 (volume). 5.9 Formic acid solution, 2.0%. Pipette 2.0mL formic acid (5.6) to a 100mL volumetric flask, dilute with acetonitrile (5.3) and make the volume up to the mark. Now equipped. 5.10 Saturated sodium chloride solution. Weigh 20g of sodium chloride (5.7) and place it in a beaker, add 40mL of water, shake to dissolve, let it stand, and use it now. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 40844-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40844-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 40844-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40844-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.